Solve the equation and express the solution in exact form.ln eln x - ln(x - 7) = ln 6
A. 
B. 
C. ?
D. {7, 6}
Answer: B
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Solve the problem.Benjamin never has more than 21 hours free during the week. He is trying to make a weekly plan for dividing his free time between reading and working out. He wants to spend at least 8 hours per week reading. Write a system of inequalities to describe the situation. Let 
of time for reading and 
of time for working out.
A. x + y ? 21 x ? 8y x ? 0 y ? 0 B. x + y ? 21 x ? 8y x ? 0 y ? 0 C. x + y ? 21 x ? 8 y ? 0 D. x + y ? 21 y ? 8 x ? 0
Use the cofunction identities to find an angle ? that makes the statement true.tan (2? - 140°) = cot (? + 5°)
A. ? = 6° B. ? = 75° C. ? = 10° D. ? = 16°
Find the inverse of the function.f(x) = 
x + 7
A. f-1(x) = 
x + 5
B. f-1(x) = 5x - 35
C. f-1(x) = 
x - 7
D. f-1(x) = 5x + 35
Let the function 
be defined by the equation 
, where x and 
are real numbers.
Find the domain of the function 
.
?
A. domain: 
B. domain: 
C. domain: 
D. domain: 
E. domain: 